Reinforcing-bar.



PATENTED JUNEQ, ,J. N. LOVELEY. REINPORGING BAR. APPLIQATION FILED JUNE 25,1907.

nnrrnn STATES JOSEPH N. LOVELEY, 01 DETROIT, MICHIGAN.

REINFORCING-BAR.

Specification of Letters Patent.

Patented June 2, 1908.

Application filed. June 25, 1907. Serial No. 380,716.

To all whom it may concern:

Be it known that I, JosEPI-r U. LOVELEY, a citizen of the United States, residing at Detroit, in the county of VVayne,.and State of Michigan, have invented certain new and useful Improvements in Reinforcing-Bars, of which the following is a specification.

' This invention is a structural metal beam or bar for use as a reinforcement in concrete building construction, and has for its ob ject to provide a strong and rigid reinforcement which will not slip when molded in the beam or building element, the bar beingprovided with projecting ribs or lugs which ongage the concrete and assist in binding the same to the material in which it is embedded.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the bar. Fig. 2 is a top plan view. Fig. 3 is an end view. Fig. 4 is an end view of a modification. Figs. 5, 6, '7 and 8 are corresponding views of a different form, having projecting lugs instead of ribs.

The body 6 of the bar isrolled to an angular, folded or flanged shape, the form for example either a V bar, as shown in Figs. 3 and 7 or a U, as shown in Figs. 4 and 8. These forms are believed to produce a more rigid reinforcement than a 'round or square bar, with the same or a less amount of stock, and also afford more surface for the contact and adhesion of the concrete iuwhich the bar will be embedded.

In one form, as shown in Figs; 1 to 4 inclusive, the inner and outer or opposite surfaces of the bar are provided with cross ribs 7 which project from said surfaces, say about one-eighth of an inch. these IlbS, which may be located opposite to each other on the opposite sides of the bar.

The edges of the bar are provided with pro greet ng lugs S which may be conveniently ig ocated at the spaces between the ends of the There is a series of ribs, and these lugs project in the same plane as the flanges of the bar.

In another form, as shown in Figs. 5 to 8,

inclusive, the opposite surfaces of the barhave sets of projecting lugs or interrupted ribs 9, which may project about one-eighth of an inch above said surfaces. These lugs are arranged in a series of lines across the bar, and are spaced from each other, and the lugs of the alternate rows are stag ered with respect to each other. That is, the In s of one row are in line with the spaces of t e adjacent row. This form may also have the pro jecting lugs 8 at the edge, as shown.

The projecting ribs or lugs prevent any draw or slip of the reinforcement in the beam under weight or strain, since when the concrete hardcns it engages said projecting ribs or lugs, or the shouldersformed thereby and prevents slip in any direction. The bar will preferably be rolled or produced in steel and the shapes indicated give great strength and resistance to both bending and torsional strains.

I claim:

1 A bar adapted for use as a concrete roinforceinent, comprising a flanged shape or body opposite faces of which have a series of spaced projections extending transversely across the same and spaced projections at the edges of the flanges.

2. A bar adapted for use as a concrete rcil'iforcenient,comprising a body having opposite longitudinal flanges provided with spaced. ribs extending crosswise on both sides thereof and lugs projecting at the edges of the flanges.

In testimony whereof I affix my signature, in presence of two witnesses.

JOSEPH IJOVELEY.

'itnesses:

lCLimisn'ru J. Pines,

(Joint .IQ. llianrnr. 

